1-Forms on half-lines
Monday, December 22, 2014
In this note (with Paul Donato) we characterize the differential 1-forms, defined on the various half-lines Δ, Δn, Δ∞, that share the same underlying set [0, ∞[. We show in particular that the space of 1-form is in every case a 1-dimentional module on the space of functions on the half-line, and they all vanishe at the origin. 
Ref. http://math.huji.ac.il/~piz/documents/DBlog-Rmk-1FOHL.pdf